STATE GEOLOGIST It) 



f. The valley of the An Sauble river. By & Pettiboae, ol 



Anii 



wn. Wayne county. By 1>. T. Woodruff, of 

 Brownstown. 



era! other communication! are pi >mia< d, and bu] 

 be in | 

 The unpacking and labeling of the immense qui 



.i specimens required to illustrate the g all parts 



of the State, and complete the suites of duplicates called fer 

 ablishing the surrey, forms no inconsiderable 

 share of the mechanical labor imposed upon the f 

 The locality . -h individual specimea must be pres 



from the time it is broken from the rook, through all the vicissi- 

 tudes nf bagging, transportation by band, boxing-, trans] 

 tion by public conveyance, and unpacking; and not only this, 

 for wlit* re a cliff presents two or more strata successively su- 

 perimposed, it is essential for the geologist to know what I 

 or other specimens are afforded by each stratum. Allusion is 

 hero made to the subject, for the purpose of explaining thus 

 early, the system of permanent labels which has I >pted. 



Every locality visited by the geological surveyors is desig- 

 nated by a separate number. These Locality-numbers form a 

 series reaching from the beginning to the end of the survey. 

 In a b<»< k of localities provided for the purpose, the precise 

 locality corresponding to each number is stated in full, to 

 which are added the name of the owner of the land, (when 

 known,) the formation exposed, the fossils found, and remarks. 

 On every specimen collected is Btuck a small oval pic 

 yellow paper on which is written the number designating the 

 locality, which, in this way, is sure to be made an m> parable 

 pecimen. The successive Btrata ;it any locality 

 the letters of the alphabet, in all ca» 

 ginning at the low< Bt Btratum. 



ted during the past seasoo have filled 

 .in! when it is known that each 1" i 



from fifty tu one hundred specimens, BOme idea may be 



